Mail delivery failed: returning message to sender

Hello,

When sending an email from my business email address that I setup through you I get an error message and my email never makes it to the intended recipient.  Can you please change settings on the server so that my email s will go through?

    host gmail-smtp-in.l.google.com [hidden]SMTP error from remote mail server after pipelined end of data:550-5.7.26 This mail has been blocked because the sender is unauthenticated.550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM.550-5.7.26550-5.7.26  Authentication results:550-5.7.26  DKIM = did not pass550-5.7.26  SPF [kerrmanufacturing.com] with ip:[hidden] = did not pass550-5.7.26550-5.7.26  For instructions on setting up authentication, go to550 5.7.26  https://support.google.com/mail/answer/81126#authentication a18-20020a0cca92000000b0067f4f8cc986si12607602qvk.274 - gsmtp